Sika MaxTack® Ultra

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Silane terminated polymer

Sika MaxTack® Ultra has a shelf life of 9 months from the date of production, if it is stored in undamaged, original, sealed packaging, and if the storage conditions are met.

Sika MaxTack® Ultra shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C.

−40 °C to +80 °C

+5 °C to +40 °C, min. 3 °C above dew point temperature

+5 °C to +40 °C

Using a nozzle with a 5 mm diameter, bead yield is approx. 15 m in length per 290 ml cartridge (approx. 20 ml per linear meter).

For the application of Sika MaxTack® Ultra all standard construction guidelines apply.

The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. Sika MaxTack® Ultra adheres without primers and/or activators.
However, for optimum adhesion and critical, high performance applications, such as on multi-story buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming and/or pre-treatment procedures shall be followed:
 

Non-porous substrates
Aluminium, anodised aluminium, stainless steel, PVC, galvanised steel, powder coated metals or glazed tiles have to be cleaned and pre-treated using Sika® Aktivator-205, wiped on with a clean towel. Before sealing, allow a flash-off time of > 15 minutes (< 6 hours).
Other metals, such as copper, brass and titanium-zinc, also have to be cleaned and pre-treated using Sika® Aktivator-205,wiped on with a clean towel. After the necessary flash-off time, use a brush to apply Sika® Primer-3 N and allow a further flash-off time of > 30 minutes (< 8 hours) before sealing the joints.
 

Porous substrates
Concrete, aerated concrete and cement based renders, mortars and bricks shall be primed using Sika® Primer-3 N applied with a brush. Before sealing, allow a flash-off time of > 30 minutes (< 8 hours).
 

For more detailed advice and instructions please contact our Technical Service Department.
 
Note: Primers are adhesion promoters. They are neither a substitute for the correct cleaning of a surface, nor do they improve the strength of the surface significantly.

Clean all tools and application equipment immediately after use with Sika® Remover-208. Once cured, residual material can only be removed mechanically.